Cam-brake sheave and support



ept, 23, 1924. 509,122

V. WILLOUGHBY CAM BRAKE SHEAVE AND SUPPORT Filed Feb. l, 1924 //V VE N TOR /YTTORNEY Patented Sept. 23, 1924.

VICTOR WILLOUGHBVY, OF RIDGEWOOD, NEW JERSEY, .AS-SIGNOR TO AMERICAN GAR AND FOUNDRY COMPANY, F NEW YORK, N. Y., A CORPORATION 0F NEW JERSEY.

CAM-BRAKE SHEAVE AND SUPPORT.

Application led February 1, 1924. Serial No. 689,898.

To all whom it may concern.'

Be it known that I, VICTOR WILmUGHY, residing at Ridgewood. Bergen County, State of New Jersey, and being a citizen of the United States, have invented certain new .and useful Improvements in aCam- Brake Sheave and Support, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to m'a-ke and to use the same, reference being had to the accompanying drawings', which illustrate the preferred lorm of the invention, though it is to be understood that Vthe invention is not limited to the exact details of construction shown and described, as it is obvious that various modifications thereof within the scope of the claims will occur to persons skilledin the art.

In said drawings:

Fig. 1 is a vertical longitudinal section of one end of a hopper car provided with a brake sheave and support constructed in ac@ cordance with this invention;

Fig. 2 is a fragmentary front elevation showing the cam'brake sheave and support as applied in Fig. 1;

' indicated by broken I v4o It is an object of this invention to provide an improved cam brake sheave andl support particularly adapted .for hopper cars, but which may be readily applied to other types of cars.

.- In the drawings, this invention is shown- Yapplied to a hopper car having an end 'sill 1 and a center sill 2 which support the Y usual hopper body comprising .an end sheet 3 and a slope Hoor sheet 4, the end sheet 3 being connected to the end sill 1 by angle members 5. Secured tothe center si112 by the rivets 6. which secure the center sill v to the'end sill 1 by means ofan angle 9..

cover plate 7 thereto, is a plate 8 connected The plaie' 8 is slotted as at 10 and has se? cured to its underside, adjacent to the slot, angle members 11 and 12 having pivotally mounted therein a brake lever 13 to which is a bent supporting member 16 to which 1s secured an inverted U-shaped member 17 whlch has its web 18 connect/ed to the supporting member 16 by .rivets 19 and is provided with an outwardly projecting liange 20 which is secured to the lower ange of the center sill 2 by rivets 2l. The U-shaped member 18 has its sides 22 and 23 provided with openings in which is mounted a pin 24 which rotatably supports a cam brake sheave 25. The sides 22 and 23 of the U-shaped member 17 are connected by the bent member 26 which has its ends secured to the sides of the member 17 and provided with openings to receive the pin 24 and has its center portion 27 bent to serve as a Vbrake mast step for the brake Vmast 28 which has its lower end of reduced diameter passing through an opening in the portion 27. The brake mast 28 is guided in openings in the supporting member 16, in the brake step 29 and in the bracket 30 carried by the angle member 31-at the upper edge of the hopper end sheet 3. The brake mast is provided with the usual pawlv and ratchet 32 and hand wheel 33 and the brake step 29 is sup` ported on brackets 34 secured to the hopper end-sheet 3 and to the angle members 5.

The camsheave is provided With a substantially semi-cylindrical portion 35 havin a groove 36 therein in which engages a chaln 37 /which'has one end secured to the brake mast and its other end secured in the groove as at 38. The cam brake sheave 25 is also provided with `a hook 39 to which is secured a chain 40 which has its other end secured to the brake lever 13 as at 41.

In the operation of this device, rotation of the brake mast 28 to apply the brakes will cause rotation of the lcam sheave 25, it being noted that as the chain 37 is wrapped about the' brake mast 28 the effective radius through which power is applied to the cam brake sheave y25 gradually increases to a maximum'and thereafter remains constant, whereas-the effective radius through which power is applied by the cam brake sheave 'through the hook29 to the chain 40 gradually decreases from a maximum to a minimum, and thereupon remains constant as the chain 40 is wrapped about a drum 42 formed at the hub of the cam brake sheave.. What is claimed is:VV i

1. In a car having center and end sills,

a car brake comprising a cam brake sheavel lit* operatively connected to the brake lever, an inverted U-sliaped member supporting said cam brake sheave and havinga projection connected to said center sill and supporting means for said U-shaped member supported from said center and end sills.

2. In a ca'r brake, a cam brake sheave operatively connected to the brake lever, an inverted U-shaped member supporting said cam brake sheave, a brake mast operatively connected to said cam brake sheave, a brake mast step connecting the sides of said U-shaped member, and supporting means for said U-shaped member adapted to guide said brake mast.

3. In a car having center and end sills, a car brake comprising a cam brake sheave operatively connected to the brake lever, a U-sliaped member supporting said cam brake sheave, a brake mast operatively connected to said cam brake sheave, a brake mast step serving as a strut 'between said brale mast and said U-shaped member and means sup- 'ported from said sills supporting said U-shaped member and adapted-to guidesaid brake mast.

4. In a car having center and end sills, a car brake comprising a cam brake sheave operatively connected to the brake lever, an inverted U-shaped member supporting said cam brake sheave and connected to said center sill, a brake mast operatively conand a support for said U-shaped member connected to said end sill and adapted to guide said brake mast.

5. In a car having center and end sills,

a car brake comprising a cam brake sheave operatively connected to the brake lever, an inverted U-shaped member supporting said cam brake sheave and connected to said center sill, a brake mast operatively connected to said cam brake sheave, a brake mast step connecting the sides of said U-sliaped member and serving as a strut between said brake mast and said U-shaped member. and supporting means for said vU-shaped member.

supporting means for said U-shaped member connected to said end sill and adapted to guide said brake mast.

In witness whereof I vhave hereunto set my hand in the presence of two witnesses.

VICTOR WILLOUGHBY.

Witnesses:

F. HARING, R. W. SMITH. 

